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Strange SMD resistors code

Discussion in 'Electronic Design' started by Fred Bartoli, Aug 17, 2007.

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  1. Fred Bartoli

    Fred Bartoli Guest

    Looking at a mobo, trying to reverse some bit of it, I just notices that
    the resistors values aren't noted following the ordinary 3 or 4 figures
    code, but rather 2 figures and one letter, like 93A, 30C, 01C, 07B...

    A quick search didn't show anything.

    Anyone have pointers to this?
  2. Fred Bloggs

    Fred Bloggs Guest

    Looks like hex...
  3. Phil Allison

    Phil Allison Guest

    "Fred Bartoli = CRIMINAL ASSHOLE"

    ** **** OFF

    - you pile of stinking


    ....... Phil
  4. Eeyore

    Eeyore Guest

    Some one shoud put a hex on you, you fantasising IDIOT.

  5. Ben Jackson

    Ben Jackson Guest

    There's a standard set of 2-digit+1-letter codes that refer to values.
    Search for EIA-96. If that's right, your resistors are 90.9, 20.0k,
    10.0k, 1.15k.
  6. PeteS

    PeteS Guest

    The codes on some resistors are rather like the codes on some ICs - they
    do not convey meaningful information about the value of the part.
    Those codes ring a bell and may be Vishay parts, so you might find the
    answer there.


  7. Fred Bartoli

    Fred Bartoli Guest

    Le Fri, 17 Aug 2007 15:12:18 -0500, Ben Jackson a écrit:

    Short after posting my question I've found some reference.
    It seems to be used manly on 1% 0603 where there's no room for four
    digits. Strange that I didn't notice it before.
  8. Jeff L

    Jeff L Guest


    *** Exactly. I've seen them many times before.
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